废旧硅橡胶粉改性聚丙烯的性能研究  

Study on Properties of Polypropylene Composites Modified by Silicone Rubber Powder

作　　者：曹宏伟 郭洺伽 张彩霞 李超 秦刚[3] Cao Hongwei;Guo Mingjia;Zhang Caixia;Li Chao;Qin Gang(State Grid Henan Electric Power Research Institute,zhengzhou 450052,china;Henan Enbai Gaoke Group zhengzhou 450052,china;School of Materials Science and Engineering,Henan Polytechnic University,Jiaozuo 454001,china)

机构地区：[1]国网河南省电力公司电力科学研究院,河南郑州450052 [2]河南恩湃高科集团有限公司,河南郑州450052 [3]河南理工大学材料科学与工程学院,河南焦作454001

出　　处：《塑料科技》2018年第8期72-76,共5页Plastics Science and Technology

基　　金：国网公司科技项目(52170215000F,521702160003)

摘　　要：用熔融共混法制备了聚丙烯/废旧硅橡胶粉（PP/SRP）复合材料,考察了SRP粒径、用量对复合材料力学性能、加工性能和热稳定性的影响,并研究了复合材料的形貌和结晶性能。结果表明：随着SRP用量的增加,复合材料的缺口冲击强度逐渐提高,而其拉伸强度和弯曲强度逐渐下降;SRP的粒径越小,复合材料的性能越好;SRP的加入抑制了PP的结晶,并有效提高了复合材料的热稳定性。The polypropylene/waste silicone rubber powder（PP/SRP） composite was prepared by melt blending. The effects of particle size and amount of SRP on the mechanical properties, processing properties and thermal stability of the composites were investigated. The morphology and crystallization properties of the composites were studied. The results show that： the notch impact strength of the composites increases with the increase of SRP content, while the tensile strength and flexural strength decrease. The smaller the particle size of SRP is, the better the properties of the composites are. The addition of SRP inhibits the crystallization of PP and effectively improves the thermal stability of the composites.

关 键 词：聚丙烯 硅橡胶粉 力学性能 韧性 

分 类 号：TQ325.14[化学工程—合成树脂塑料工业]